Custom Ryobi 520 Printing Rubber Roller
Product Overview:
AstraRoll manufactures direct-fit replacement rubber rollers for Ryobi 520, 522, and 524 offset presses. Covering ink form, distributor, ductor, and dampening positions, each roller is CNC-ground to RA0.8, ensuring uniform nip pressure and consistent ink/water transfer.
We use premium NBR (Nitrile) as standard, with PU or Silicone available for specific solvent requirements. Hardness is strictly matched to the station—30–35 Shore A for ink rollers and 25–30 Shore A for water rollers. All dimensions are custom-machined to your exact OEM drawing or physical sample.
Roll Function: Printing Roller
Industry Applications: Industry, Printing, Packaging
Inquiry Email: sales@astraroll.com
Custom Ryobi 520 Printing Rubber Roller Details
Product Overview
AstraRoll‘s Custom Rubber Rollers are engineered as direct-fit replacements compatible with the inking and dampening units of Ryobi 520, 522, and 524 sheetfed offset presses. The set covers the full range of positions, from ink form and distributor rollers to ductor and dampening rollers, each machined to precise dimensions for a true drop-in fit.
Technical Parameter
Standard Reference Dimensions (mm) — Inking Unit
(Note: Custom sizing to exact OEM drawings is our standard practice)
| Position | Reference Diameter (mm) | Rubber Length (mm) | Total Length (mm) |
|---|---|---|---|
| Ink Form Roller | 49 | 520 | 614 |
| Ink Form Roller | 47 | 510 | 576 |
| Ink Form Roller | 45 | 520 | 576 |
| Ink Form Roller | 51 | 520 | 614 |
| Ink Distributor | 52 | 515 | 640 / 600 |
| Ink Ductor | 45.5 | 515 | 607 |
Standard Reference Dimensions (mm) — Dampening Unit
| Position | Reference Diameter (mm) | Rubber Length (mm) | Total Length (mm) |
|---|---|---|---|
| Water Form (Old/New) | 42 / 43.8 | 525 | 595 / 614 |
| Water Ductor | 36 | 540 | 610 |
(Final dimensions are strictly verified against the customer's physical sample or OEM drawing before production to ensure zero installation errors.)
Compound & Hardness
- Standard Compound: Premium NBR (Nitrile) for conventional inks.
- Optional Compounds: PU (Polyurethane) for enhanced solvent/abrasion resistance; Silicone for specialized release.
- Ink Form Rollers: 30–35 Shore A (optimal film splitting and shear resistance).
- Dampening Rollers: 25–30 Shore A (softer compound for effective water transfer).
Core & Finish
Core Material: Steel / Aluminum
Surface Finish: Precision ground to RA0.8 (reduces glaze formation and ensures uniform ink transfer).
Runout: ≤0.02mm
Dynamic Balancing: Verified for high-speed operation.
Application Industrial
Ryobi 520 / 522 / 524 Presses: Full-set replacement for worn, glazed, or swollen rollers.
Commercial Offset Printing: Consistent ink transfer for high-quality short to medium runs.
Label & Packaging Printing: Durable NBR compound for repeated production cycles.
Solvent & Specialty Ink Systems: PU compound offers enhanced resistance where standard NBR may swell.
Why Choose AstraRoll’s Ryobi 520 Rubber Rollers?
Station-Specific Hardness: We do not use generic sizing or hardness. Ink form rollers are strictly 30–35 Shore A, while water rollers are 25–30 Shore A, ensuring correct ink film splitting and water control without premature degradation.
Zero-Error Custom Machining: While we provide standard reference dimensions (e.g., 49mm, 47mm ink rollers), every order is custom-machined to your exact OEM drawing or physical sample. We guarantee a true drop-in fit without shimming.
Precision Surface Finish (RA0.8): Ground to RA0.8 ensures uniform ink/water film transfer, reduces glaze formation, and extends the service life of the roller.
Factory-Direct Supply: Manufactured with strict dimensional inspection. Custom compounds and dimension verification against customer samples are available on request.
Q1. Are you a trader or direct factory?
We are a direct manufacturing factory with over 20 years of expertise in high-end industrial rollers, casters and material handling solutions. Our facility operates with ISO-certified quality management systems, allowing us to maintain full control over production cycles and quality standards. Throughout two decades of growth, we have established deep, long-term strategic partnerships with several listed companies and global automation leaders, proving our reliability as a high-tier industrial supplier.
Q2. What are your main products?
AstraRoll specializes in the engineering and production of three core product lines: Industrial Rollers, Heavy-Duty Wheels, and Precision Casters. We do not just sell components; we provide integrated movement and transport solutions. Our products are widely utilized across high-demand sectors, including: New Energy, Lithium Battery, Mining, Heavy Industry, Medical Institutional, Agriculture and Logistics.
Q3. What about delivery time?
We deeply understand that project timelines are critical.
Standard Products: Usually dispatched within 7–15 working days if the components are in stock.
Customized/OEM Orders: Depending on the complexity and volume, the lead time typically ranges from 20–35 days. This includes time for technical drawing confirmation, specialized tooling, and rigorous pre-shipment testing.
Shipping Methods: We offer flexible global logistics solutions, including FOB and CIF terms. We ship via Sea Freight (for bulk industrial orders), Air Freight (for urgent project needs), and International Express (DHL/FedEx/TNT) for smaller components or samples.
Q4. How can I get a quote for customized products?
Since a significant portion of our business involves specialized engineering, pricing is tailored to your specific technical requirements. To provide an accurate quote, please provide the following details: Technical Drawings or Sketches, Application Environment, Quantity, Special Requests. Our engineering team typically reviews and responds to custom inquiries with a formal quotation within 24–48 hours.
Q5. What is your payment?
TT / Paypal / Western Union / LC / Credit Card etc. are all available to us.
